I think Greg’s design calls for a bulkhead SMA connector and a Tin plated can. So you just solder the connector to the can which makes a good electrical and mechanical connection. Larger connectors and other metals can be connected with fasteners. But if you use a cardboard can that has an aluminum foil lining then it will be difficult to make a good connection. The above site ignores the electrical connection and uses epoxy to strengthen the joint. This may be “good enough” for a communications type application, but the reduced isolation may be noticeable in the radar application.

Hi,
Are there any people who can explain the using sync pulse on FMCW mode?
What is purpose of this pulse from the modulator to the left channel pc audio port?
I hope someones help me to solve this subject.
Thanks…

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Open discussion on the subject of small and short-range radar systems. Post your questions, share your results, discuss design possibilities.
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